Muffler.



No. 706,844. Patented Aug. l2, |902.

-H. N. morsmen.

MUFFLER.

(Application led Sept. 23, 1901.)V

(N0 Model.)

SWW/who@ Homer A/.Mofairlr/er m. fm@

'UNITED STATES PATENT OFFICE.

HOMER N. MOTSINGER, OF PENDLETON, INDIANA, ASSIGNOR OF ONE-HALF TO J. B. BAR'lHOLOMElV, OF PEORIA, lLLlNOlS.

v-MUFFLER SPEGFCATIGN forming part of Letters Patent No. Y706,844, dated August 12, 1902. Application filed September 23, 1901. Serial lilo.l 76|1G3- V(N0 IDOGL) T @ZZ whom it may concern:

Be it known that l, HOMER N. MOTSINGER, a citizen of the United States, residing at 'Peudleton, in the county of Madison and State.

of Indiana, have invented a new and .useful Muiiier, of which the following is a spccilication.

My invention relates to an improvement in means for eliminating the sound caused'by 1o the exhaust of gas or other engines. I V

lleretotore in the design of mutliers itv has been the object to provide means by which the gases under pressure are allowed to escape through diverging openings into a larger I5 chamber or series of chambers.

My present invention departs from the usual lines; and the object thereof is to provide means by which the exhaust-gases may be rst divided into a large number of small 2o streams, which are directed in opposing or converging lines, so that each stream will be met by a substantially equal and practicallydirectly opposite stream, each pair of coacting streams butting head on into a chamber, from which the gases are then allowed to escape. By this means the velocity of egress is checked, the chambers into which the said opposing streams discharge being in, area much greater than the area of the exhaustpipe, from which the gases are received.

A further object of my invention is to so construct and arrange the part-s of the muffler that it shall be light, that it may be built by unskilled labor, of cheap and readily-obtainable material, and of such character that it may be easily opened for inspection or repair.

The accompanying drawings illustrate my invention.

Figure 1 is a section of a preferred form of 4o my invention. Fig. 2 is an end elevation.

In the drawings, 3 and et indicate a pair of similar heads, preferably castings, each of which is provided with a cylindrical flange 5. lnv order to obtain proper length of the receiver to be formed of the heads 3 and il, 1 provide a cylindrical section 6, the ends of which are so formed as to mate with the adjacent ends of the {ianges 5. Any suitable means may be provided for holding the heads 5o 3 and 4 and the portion 6 together, so as to .form a receiving-chamber 7 5 but for commer"i head. Sis a pipe 10, which is preferably slightlyless 6o cial reasons l provide the cheap construction now to be described.

Each of the heads 3 and 4 is provided with a centralopening S and with a series of openings 9, arranged iu any desired manner, the openings 9 in one head being arranged in alinement with Ithe openings of the other Extending through the two openings in diameter than the diameter of the openings 8. Each end of the pipe 10 is threaded and adapted to receive a nipple 11, the inner end of which is provided with a seat 12, so that by screwing the two nipples upon the pipe they will be seated in the outer ends of the openings 8, so as to clamp the two heads 3 and el upon the central portion G and at the same time form a gas-tight joint. An eX- haust-pipe 13 will be attached to one of' the 7o nipples 11, and the other nipple may be closed by a plug 14,011 in the case of the -Iuse of double engines the plug 14C may be displaced by an exhaust-pipe.

Pipe 10 is provided with a series of perforations 15, which in area should be preferably considerably greater than the area of the cross-section of the pipe. Extending through each pair of openings 9 is apipe 16, each end of which is threaded so as to receive a cap 17, provided 8o with a seat 18, which is adapted to close the outer end of the adjacent opening 9 and also serve to clamp the portions of the chamber 7 together. Each pipe 16 is provided with a number of perforations 19, which should be arranged in alining pairs across the pipe. The caps 17 are provided with outlet-pertorations 20, or, if desired, the entire end ot the cap may be omitted. Y

In operation exhaust-gases under pressure 9o arel discharged into the pipe 10 and pass therefrom through the perfor-ations 15 into the chamber 7, the pressure being reduced,

owing to the increased capacity of the cham ber 7. The gases then pass through the openings 19 into the several pipesrl, the said gases being thus divided into a large number of small converging streams, which as they enter the pipe 16 come into opposition in pairs, the force of each stream being opposed ico by the equal force of an exactly-opposite This opposition of streams of gas,

stream.

together with the inereased capacity of the pipes 16, results in a further reduction of pressure and veloeityto such a point that the gases pass from the ends of the pipes 16 Without noise.

I claim as my inventionl. In a muflier, the combination of a pair of heads eaeh having a similar set of openings therethrough, one or more pipes passing one through eaeh pair of the said openings, means carried by said pipes for clamping said heads togetherand the pipes in position, and a pair of alined openings leading into the interior of eaeh of said pipes.

2. In a muffler, the combination of a pair of heads eaeh having a similar set or" openings therethrough, a cylinder arranged between said heads and provided with ends adapted to mate with said heads, one or more pipes passing one through eaeh pairof the said openings, a cap mounted upon eaeh end of eaeh pipe and adapted to engage the heads so as to close the openings and clamp the heads upon the cylinder, and openings leading from the cylinder into the interior of eaeh of said pipes.

3. In a muffler, the combination of a receiving-chamber, and a plurality of pipes eX- tending therethrough eaeh of said pipes having openings leading through its walls from the receiving-chamber into its interior.

4. In a muffler, the Combination of a receiving-chamber, a receiving-pipe extending through the middle thereof and having a series ot' openings through its Wall into the chamber, and a plurality of discharge-pipes surrounding the receiving-pipe and extending through the receiving-chamber and having a series of openings leading through their Walls into their interiors.

I-IOMER N. MOTSINGER.

Vitnesses:

G. W. CAMPBELL, J As. H. SMITHER. 

